SIM300CZ GSM / GPRS MODULE DEVELOPMENT BOARD :
SIM300CZ a module for GSM / GPRS supports 3 frequencies are 900 MHz,
1800 MHz and 1900 MHzThe company has brought the stone to make the
module SIM300CZ, The circuit board further including the Supply, RS232,
integrated drive small speakers (Buzzer) and Simcard to enter the box for the
convenience of use because, the module has 60 pins, and the pins are very
close together. The circuit has other parts i.e ADC, GPIO, KEYPAD or I/O,
the other destroyed the rock cycle as a point for soldering to a circuit board for the expansion.
The customer can learn from the CD ROM files.
 Support GSM / GPRS 3 frequencies include 900 MHz, 1800 MHz and 1900 MHz.
 Support a protocol TCP / IP.
 A box for Insert SIM CARD three support systems (AIS, DTAC, TRUE MOVE).
 The indicator light POWER, STATUS, NETWORK, RI, RX, TX.
 Is a small speaker (Buzzer) when called to cry to Enable / Disable by Jumper.
 Has established for the RJ11 to the HANDSET.
 A slot for the MIC and SPEAKER with Mike and external speakers.
 A switch ON / OFF for Open, disable the module.
 A circuit RS 232 and the rack for the computer or microcontroller to activate the.
AT Command (Auto Baudrate).
 Has established for the plug?Adapter 9 Volt (DC) or use stem plug 5 Volt (DC).
Package contains CDROM and RS232 Cable.